Catalase activity in digestive contents of DSS-induced colitis in mice. Digestive contents homogenates were prepared from MnKat+ treated mice and from control groups (PBS 0% DSS, PBS 1% DSS and MnKat- 1% DSS). Total proteins were assayed using Bradford method. Total catalase activity was assessed using colorimetric method and expressed as mU/mg of total protein using box-and-whisker plots, n = 10/treatment. (*) P < 0.05 versus no inflamed group (PBS).